PIV Measurements on an Air Blast Atomizer

Suriyanarayanan, P and Venkatakrishnan, L PIV Measurements on an Air Blast Atomizer. In: 12th Asian Congress of Fluid Mechanics, 18-21 August 2008, Daejeon, Korea.

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    Abstract

    The flow field of a typical airblast injector was studied using PIV. The air-water flow field was documented with 2D PIV and the air-alone flow at four streamwise locations with stereo PIV> The results show that for a fixed air-water mass ratio, volume flow rate has a negligible effect on the dispersion angle, but a considerable effect on the mean velocity field. The stereo PIV measurements indicate the presence of a region of reversed flow at the injector centerline which initially increases and persists downstream though considerably reduced in size and magnitude. The findings have significant implications for combustor design and can be used to optimize airblast injectors for efficient fuel mixing.

    Item Type: Conference or Workshop Item (Paper)
    Subjects: AERONAUTICS > Aerodynamics
    Division/Department: Experimental Aerodynamics Division, Experimental Aerodynamics Division
    Depositing User: Mr P Suriyanarayanan
    Date Deposited: 06 Jan 2012 13:39
    Last Modified: 06 Jan 2012 13:39
    URI: http://nal-ir.nal.res.in/id/eprint/9147

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